Improved fuse for blasting



IMPROVED FUSE FOR BLASTING, 840.

Specification forming part of Letters Patent N0- 47 ,677, dated May 9, 1865.

a new and useful Improvement in Fuses for Blasting'and Other urposes; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention consists in the substitution,

for the central train or core of gunpowder in 1 follows: Take cotton yarn and twist it into a Steep the said for a few minutes in nitric acid contained 1n a stoneware vessel; squeeze it, and thoroughly WaShil) in water which is allowed to fall upon it from a pipe set at a height of several feet,- then s'queeze it and dry in a room heated to about 120 Fahrenheit, and when dry place it in a mixture composed of equal parts of n1tric acidof aspeclfic gravgunpowder,

above mixture, it is to be again squeezed, washed for several hours in running water, and dri d again, and afterthis and is then lit for use. ration makes gun-cotton which emits but litfeeding or conducting the gunpowder among gun-cotton strand or twist is conducted into the center of the series of covering yarns or strands, which are wound around it by means of the revolving bobbins or spools.

WVhat I claim as myinvention, and desire to secure by Letters Patent, is-

he employment, in a fuse, as for gunpowder, of gun-cotton, substantially as and pose herein describec. a J. S. BIOKFORD.

Witnesses:

T. HARRY TILLY,

Notary Public, Falmouth. N IcHs. TRESIDDER,

Accountant, Falmouth. 

